11th Std Maths Ex 3.7(1)(iv) IF A+B+C = 180° PROVE THAT Sin^2A + sin ^2 B - sin^2 C = 2 sinA sinB co

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11th Std Maths Ex 3.7(1)(i) IF A+B+C = 180° prove that sin2A + sin 2B + SIN2C = 4SINA sinB sinC11th Std Maths Ex 3.7(1)(i) IF A+B+C = 180° prove that sin2A + sin 2B + SIN2C = 4SINA sinB sinC
11th Std Maths Ex 3.7(iii) IF A+B+C = 180° prove that sin^2 A +sin^2B+ sin^2 C = 2 + 2cosA cosB cosC11th Std Maths Ex 3.7(iii) IF A+B+C = 180° prove that sin^2 A +sin^2B+ sin^2 C = 2 + 2cosA cosB cosC
11th Std Maths Ex.3.7(2) If A+B+C=2S, THEN PROVE THAT SIN(S-A)SIN(s-B)+ sins sin(s-C)= SinAsinB11th Std Maths Ex.3.7(2) If A+B+C=2S, THEN PROVE THAT SIN(S-A)SIN(s-B)+ sins sin(s-C)= SinAsinB
11th Std Maths Ex 3.7(1)(vi) If A+B+C= 180° PROVE THAT SINA+SINB+SINC = 4COSA/2COSB/2COSC/211th Std Maths Ex 3.7(1)(vi) If A+B+C= 180° PROVE THAT SINA+SINB+SINC = 4COSA/2COSB/2COSC/2
11th Std Maths Ex.3.7 (4)(ii) If A+B+C= π/2, P.T cos 2A+ cos2B+cos 2C = 1+4sinAndBsinC11th Std Maths Ex.3.7 (4)(ii) If A+B+C= π/2, P.T cos 2A+ cos2B+cos 2C = 1+4sinAndBsinC
11th Std Maths Ex.3.7(4)(i) If A+B+C= π/2 P.T sin2A + sin2B + sin2C = 4cosAcosBcosC11th Std Maths Ex.3.7(4)(i) If A+B+C= π/2 P.T sin2A + sin2B + sin2C = 4cosAcosBcosC
11th maths chapter 3 exercise 3.7 question 1(1) trigonometry TN New syllabus11th maths chapter 3 exercise 3.7 question 1(1) trigonometry TN New syllabus
11th Std Maths Ex.3.7(1)(ii) IF A+B+C=180° PROVE THAT COS A+ COS B - COSC = -1 + 4COS A/2 COS B/2 SI11th Std Maths Ex.3.7(1)(ii) IF A+B+C=180° PROVE THAT COS A+ COS B - COSC = -1 + 4COS A/2 COS B/2 SI